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Article: Experimental assessment of the cyclic behaviour of concrete-filled steel tubular beam-columns with octagonal sections

TitleExperimental assessment of the cyclic behaviour of concrete-filled steel tubular beam-columns with octagonal sections
Authors
KeywordsConcrete-filled steel tube
Beam-column
Octagonal section
Cyclic behaviour
Issue Date2019
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/engstruct
Citation
Engineering Structures, 2019, v. 180, p. 544-560 How to Cite?
AbstractThis paper presents an experimental investigation on concrete-filled steel tubular beam-columns with octagonal cross-sections (OCFST) under cyclic lateral loading with or without axial load. A total of nine specimens with different parameters, including the axial load level (n) ranging from 0 to 0.5 and concrete compressive cylinder strength (fc′) varying from 30 MPa to 90 MPa, were tested. The failure modes, ultimate strengths, displacement ductility, effective flexural stiffness and cumulative dissipated energy are presented. The results indicate that OCFST beam-columns exhibit a ductile plastic mode and excellent energy dissipation. With the increase of axial load level, the ductility and the energy dissipation capacity decreases, while the ultimate bending capacity firstly increases then drops. Concrete grades seem to have limited influence on the ultimate strength and energy dissipation capacity. The comparison results of the ultimate bending moments and effective flexural stiffness between predictions using EN 1994-1-1 and AISC 360-16 and test results reveal their applicability to the design of OCFST beam-columns.
Persistent Identifierhttp://hdl.handle.net/10722/272147
ISSN
2019 Impact Factor: 3.548
2015 SCImago Journal Rankings: 1.813
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChen, J-
dc.contributor.authorChan, TM-
dc.contributor.authorSu, RKL-
dc.contributor.authorCastro, JM-
dc.date.accessioned2019-07-20T10:36:35Z-
dc.date.available2019-07-20T10:36:35Z-
dc.date.issued2019-
dc.identifier.citationEngineering Structures, 2019, v. 180, p. 544-560-
dc.identifier.issn0141-0296-
dc.identifier.urihttp://hdl.handle.net/10722/272147-
dc.description.abstractThis paper presents an experimental investigation on concrete-filled steel tubular beam-columns with octagonal cross-sections (OCFST) under cyclic lateral loading with or without axial load. A total of nine specimens with different parameters, including the axial load level (n) ranging from 0 to 0.5 and concrete compressive cylinder strength (fc′) varying from 30 MPa to 90 MPa, were tested. The failure modes, ultimate strengths, displacement ductility, effective flexural stiffness and cumulative dissipated energy are presented. The results indicate that OCFST beam-columns exhibit a ductile plastic mode and excellent energy dissipation. With the increase of axial load level, the ductility and the energy dissipation capacity decreases, while the ultimate bending capacity firstly increases then drops. Concrete grades seem to have limited influence on the ultimate strength and energy dissipation capacity. The comparison results of the ultimate bending moments and effective flexural stiffness between predictions using EN 1994-1-1 and AISC 360-16 and test results reveal their applicability to the design of OCFST beam-columns.-
dc.languageeng-
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/engstruct-
dc.relation.ispartofEngineering Structures-
dc.subjectConcrete-filled steel tube-
dc.subjectBeam-column-
dc.subjectOctagonal section-
dc.subjectCyclic behaviour-
dc.titleExperimental assessment of the cyclic behaviour of concrete-filled steel tubular beam-columns with octagonal sections-
dc.typeArticle-
dc.identifier.emailSu, RKL: klsu@hkucc.hku.hk-
dc.identifier.authoritySu, RKL=rp00072-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.engstruct.2018.10.078-
dc.identifier.scopuseid_2-s2.0-85057441567-
dc.identifier.hkuros299114-
dc.identifier.volume180-
dc.identifier.spage544-
dc.identifier.epage560-
dc.identifier.isiWOS:000456756600039-
dc.publisher.placeUnited Kingdom-

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